Pop goes the weasel: When Web 2.0 bombs, these blogs could die

When the little dot-coms blow up, says marketing/PR blogger Steve Rubel, the sites funded by their advertising will go under too. Rubel names social news site Digg as one potential victim. How does it stack up against other Web-2.0-supported sites? Above the fold, we analyze Digg and tech blog GigaOM. Below, GigaOM competitor TechCrunch sets off a red alert.

Digg: Low risk

Top banner ad: A boring invention licensing company ad, served up by Google ads. It may be stupid, but it's not under the threat of a little dot-com crash.